The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 29, 1991
Filed:
Nov. 06, 1989
Applicant:
Inventors:
Assignee:
Izumi Industries, Ltd., Saitama, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02F / ;
U.S. Cl.
CPC ...
1231 / ; 92222 ; 92223 ;
Abstract
A piston for internal combustion engines has a piston-ring groove which is strengthened with a composite layer based on porous metal which is embedded around the piston-ring groove. The porous metal contains at least more than 10% Cr, and the volumetric ratio of the porous metal is between 8 to 70%, so that even though the engine is put in action under high heat loads, no crack is initiated in the piston.
Suzuki, Yoshihiro. (1991). Piston for internal combustion engines (U.S. Patent No. 4987867). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4987867
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile